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Call
Syntax
Call(F:FUNCTION,X_1,...,X_n):OBJECT
where X_1,...,X_n are the arguments for the function F.
Summary
apply a function to given arguments
Description
This function applies the function F to the arguments X_1,...X_n
.
example
The following function MyMax takes a function LessThan as parameter,
and returns the maximum of X and Y w.r.t. the ordering defined by the
function LessThan.
Define MyMax(LessThan,X,Y)
If Call(LessThan,X,Y) Then Return Y Else Return X EndIf
EndDefine;
Let's use MyMax by giving two different orderings.
Define LT_Standard(X,Y)
Return X < Y;
EndDefine;
Define LT_First(X,Y)
Return TRUE;
End;
MyMax(Function("LT_Standard"),3,5);
5
-------------------------------
MyMax(Function("LT_First"),5,3);
3
-------------------------------
MyMax(Function("LT_First"),3,5);
5
-------------------------------
MyMax(Function("LT_First"),5,3);
3
-------------------------------
See Also